20210818267112 has 128 divisors (see below), whose sum is σ = 41922507744000. Its totient is φ = 9058268835840.

The previous prime is 20210818267097. The next prime is 20210818267117. The reversal of 20210818267112 is 21176281801202.

It is a self number, because there is not a number n which added to its sum of digits gives 20210818267112.

It is not an unprimeable number, because it can be changed into a prime (20210818267117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3550114538 + ... + 3550120230.

It is an arithmetic number, because the mean of its divisors is an integer number (327519591750).

Almost surely, 2^{20210818267112} is an apocalyptic number.

20210818267112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20210818267112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20961253872000).

20210818267112 is an abundant number, since it is smaller than the sum of its proper divisors (21711689476888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20210818267112 is a wasteful number, since it uses less digits than its factorization.

20210818267112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7611 (or 7607 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 41.

The spelling of 20210818267112 in words is "twenty trillion, two hundred ten billion, eight hundred eighteen million, two hundred sixty-seven thousand, one hundred twelve".